body{
    display: flex;
    flex-direction: column;
    align-items: center;
    header{
        width: 90%;
        line-height: 44px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid #ccc;
        .text{
            font-size: 20px;
            font-weight: bold;
            color: #008cff;
            border-bottom: 2px solid #4fadfa;
        }
        .addition{
            width: 25%;
            height: 30px;
            color: #000;
            background: #4fadfa;
            border-radius: 20px;
        }

    }
    main{
        flex: 1;
        width: 90%;
        display: flex;
        flex-direction: column;
        overflow-y: scroll;
        .course{
            width: 100%;
            min-height: 230px;
            display: flex;
            flex-direction: column;
            background: #fff;
            .txt{
                line-height: 30px;
                font-size: 18px;
                margin: 10px 0;
            }
            img{
                width: 100%;
                height: 200px; 
            }
            .img{
                width: 100%;
                height: 180px;
                box-shadow:1px 1px 5px 0 #000;
                border-radius: 15px;
                overflow: hidden;
                position: relative;
                .texts{
                    width: 100%;
                    height: 50px;
                    background: rgba(255, 255, 255,.8);
                    position: absolute;
                    left: 0;
                    bottom: 0;
                    padding: 0 20px;
                    font-size: 14px;
                    .txtTop{
                        font-size: 18px;
                    }
                }
            }
        }
        .dynamicMax{
            flex: 1;
            width: 100%;
            min-height: 400px;
            background: #ccc;
            display: flex;
            flex-direction: column;
            .dynamicBox{
                width: 100%;
                height: 375px;
                background: #fff;
                display: flex;
                flex-direction: column;
                .boxTOP{
                    padding-top: 30px;
                    display: flex;
                    align-items: center;
                    .headimg{
                        width: 50px;
                        height: 50px;
                        background: url('../../assets/imgs/dog.jpg') no-repeat center;
                        background-size: cover;
                        border-radius: 30px; 
                    }
                    .name{
                        padding-left: 10px;
                    }
                }
                .boxTxt{
                    display: flex;
                    flex-direction: column;
                    align-items: center;
                    .texts{
                        padding-top: 20px;
                        width: 95%;
                        button{
                            color:#6b6b6b;
                        }
                    }
                }
                .boxImg{
                    display: flex;
                    flex-wrap: wrap;
                    justify-content: space-around;                  
                    align-content: space-around;
                    width: 100%;
                    height: 240px;
                    .img{
                        width: 30%;
                        height: 100px;
                        background: #f60;
                    }
                    
                }

            }
        }
    }
}